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DNS
DNS Propagation
Record propagation across global resolvers on a world map
DNS Lookup
A, MX, TXT, SPF, DKIM, DMARC records + global propagation
SPF/DMARC Generator
Generate mail authentication records step by step
Redirect Checker
Full redirect chain hop-by-hop: 301, 302, HTTP→HTTPS
Security
SSL Checker
Certificate, chain, expiry, cipher suite
Security Headers
HSTS, CSP, X-Frame-Options — grade A+ to F
Blacklist Check
Check IP against 31 RBL/DNSBL lists
AI Readiness
Readiness for ChatGPT, Claude, Perplexity — robots.txt, llms.txt, schema.org
Network
Port Scanner
SSH, HTTP, HTTPS, SMTP, MySQL, PostgreSQL…
GeoIP Lookup
Country, city, ISP, organization, ASN for any IP address
WHOIS Lookup
Registration, expiry, nameservers, EPP status
My IP Address
What's my IP? ISP, location, reverse DNS
Tech Detector
Detect stack: Next.js, Cloudflare, WordPress, GA, CDN…
Performance
Speed Test
DNS time, TTFB, total load time
Full Audit
Full domain audit — all checks in one report